Your daily look at late-breaking news, upcoming events and the stories that will be talked about today:

1. WHO MAY BENEFIT FROM PROPOSED TARIFF HIKE

Beijing's threat to raise tariffs on U.S. exports could be a disaster for American soybean farmers but a boon to their Brazilian and Argentine competitors, European aerospace companies and Japanese whiskey distillers.

2. STOCK MARKET SWINGS HAVE BEEN DIZZYING

Traders pin part of the blame on Washington, but they also see this rise of volatility as a return to normalcy following an unusually calm 2017.

3. BORDER SITUATION REACHES 'A POINT OF CRISIS'

Trump signs a proclamation directing the deployment of the National Guard to the U.S.-Mexico border to fight illegal immigration and drug smuggling.

4. WHAT POLICE ARE SAYING ABOUT YOUTUBE SHOOTER

Nasim Aghdam, who wounded three people at the company's headquarters south of San Francisco, was prolific at posting videos and authorities say she was angry about YouTube's policies.

5. RUSSIA CALLS DIPLOMAT EXPULSIONS 'MOCKERY' OF THE LAW

Foreign Minister Sergey Lavrov says the nerve agent poisoning of Sergei Skripal was "staged" to justify the expulsions from many countries "whose arms were twisted."

6. WHERE EVANGELIZING CAN BE DEADLY

Missionaries along the China-North Korean border are engaged in the dangerous work of spreading Christianity to the North, sometimes with fatal consequences, AP learns.

7. WHAT IS DRIVING IMAMS AWAY IN YEMEN

A spate of deadly drive-by shootings targeting Muslim clerics sparks fear in Aden, prompting some imams to quit and abandon their mosques while others have reportedly fled the country.

8. COMFORT ANIMALS IN COURT DO OPPOSITE FOR SOME DEFENDERS, JUDGES

As pets are increasingly used in courts to comfort and calm prosecution witnesses, some say they could bias juries.

9. SURGEON GENERAL URGES AMERICANS TO CARRY OVERDOSE ANTIDOTE

The nation's chief doctor wants more Americans to start carrying the overdose antidote naloxone to help combat the nation's opioid crisis and save lives.

10. MASTERS SET TO TEE OFF

Jordan Spieth and Rory McIlroy are among the favourites at Augusta National as golf's first major gets underway.

OPINION The tight integration between oil companies, governments, and the rest of the economy has led to chaos in the oil markets recently and will have predictable effects in the months and years to come. Those makin